Structure of icetexone, a diterpene quinone from Salvia ballotaeflorae
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 14,p. 1728-1730
- https://doi.org/10.1039/p29760001728
Abstract
The title compound, a diterpenoid quinone isolated from Salvia ballotaeflorae Benth, crystallizes in space group P212121 with cell dimensions a= 20.991(7), b= 10.359(7) and c= 7.738(4)Å, with Z= 4. The structure was determined from diffractometer data by direct methods, and the model refined by least-squares techniques to R 0.037 for 1 331 observed reflections. The molecule contains a cyclohexane ring, a cycloheptadiene ring, a quinone moiety, and a γ-lactone. It is the first natural product of this structural type.Keywords
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